Physical activity assessment in cystic fibrosis: A position statement

Area of Science:

• Exercise Physiology
• Biomedical Engineering
• Clinical Research

Background:

• Establishing reliable physical activity assessment tools is crucial for cystic fibrosis (CF) research and clinical practice.
• Informed selection of measurement tools enhances data quality and comparability in CF studies.

Purpose of the Study:

• To guide the selection of appropriate physical activity measurement tools for CF research and clinical settings.
• To evaluate the reliability, validity, and responsiveness of various physical activity assessment methods.

Main Methods:

• Systematic literature review of physical activity assessment tools.
• Narrative synthesis of evidence based on four key questions regarding motion sensors, questionnaires, and diaries.
• Expert group discussion and consensus building.

Main Results:

• Activity monitors (e.g., SenseWear, ActiGraph) are recommended for comprehensive assessment, measuring energy expenditure, step count, intensity, and sedentary time.
• The DigiWalker pedometer is a cost-effective option for basic physical activity measurement.
• The HAES questionnaire is a suitable choice for assessing physical activity.
• Insufficient data exists to recommend specific diaries; further research on clinimetric properties and clinical utility is needed.

Conclusions:

• Activity monitors and validated questionnaires represent informed choices for physical activity assessment in CF.
• Further research is required to establish the clinimetric properties and clinical value of various assessment tools in CF populations.
• Standardized use of validated tools will improve the understanding and management of physical activity in CF.